@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@400;500;700;900&display=swap');
@font-face {
    font-family: 'B Traffic';
    src: local('B Traffic'), local('BTraffic'), url('https://cdn.fontcdn.ir/Font/Persian/BTraffic/BTraffic.woff2') format('woff2');
    font-weight: normal;
    font-display: swap;
}

:root {
    --bg-color: #F9F8F4;
    --text-color: #0A1B10;
    --nav-bg: rgba(249, 248, 244, 0.85);
    --accent-gold: #C5A059;
    --card-hover: rgba(10, 27, 16, 0.03);
    --error-red: #D32F2F;
    --font-body: 'Vazirmatn', sans-serif;
    --font-heading: 'B Traffic', 'Vazirmatn', sans-serif;
    --transition-smooth: cubic-bezier(0.76, 0, 0.24, 1);
}

body.dark-mode {
    --bg-color: #060E0A;
    --text-color: #E6EAE7;
    --nav-bg: rgba(6, 14, 10, 0.85);
    --accent-gold: #D4AF37;
    --card-hover: rgba(255, 255, 255, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    overflow-x: hidden;
    cursor: none;
    transition: background-color 0.5s ease, color 0.5s ease;
    font-size: 14px;
}

h1,
h2,
h3,
.nav-brand,
.footer-logo,
.step span {
    font-family: var(--font-heading);
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 5%;
}


/* Cursor & Navbar */

.cursor {
    width: 20px;
    height: 20px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    transition: width 0.3s, height 0.3s, background-color 0.3s;
}

.cursor.hover-active {
    width: 60px;
    height: 60px;
    background-color: var(--bg-color);
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    z-index: 100;
    color: #fff;
    transition: padding 0.5s var(--transition-smooth), background-color 0.5s ease, color 0.5s ease, border-bottom 0.5s ease;
}

.navbar.scrolled {
    padding: 1rem 5%;
    background-color: var(--nav-bg);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(197, 160, 89, 0.1);
    color: var(--text-color);
}

.nav-brand {
    font-size: 2rem;
}

.site-logo {
    height: 35px;
    width: auto;
    display: block;
}

.nav-links a {
    margin-left: 2rem;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-gold);
}

.nav-controls {
    display: flex;
    gap: 1.2rem;
    align-items: center;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: inherit;
    display: flex;
}

.icon-moon {
    display: none;
}

body.dark-mode .icon-sun {
    display: none;
}

body.dark-mode .icon-moon {
    display: block;
}

.nav-cart {
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
}


/* Hero & Story */

.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #000;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    #background: url('https://images.unsplash.com/photo-1556881286-fc6915169721?q=80&w=2000') center/cover;
    opacity: 0.6;
    z-index: -2;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, var(--bg-color) 100%);
    z-index: -1;
    transition: background 0.5s ease;
}

body.dark-mode .hero::after {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, var(--bg-color) 100%);
}

.hero-content {
    text-align: center;
    color: #fff;
    z-index: 1;
    margin-top: 5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.1rem;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    max-width: 600px;
}

.btn-primary {
    padding: 1rem 3rem;
    background-color: var(--accent-gold);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(197, 160, 89, 0.3);
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #D4AF37;
}

.particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    opacity: 0.5;
    filter: blur(2px);
    animation: floatParticle 15s infinite linear;
}

.particle:nth-child(1) {
    left: 20%;
    top: 80%;
    animation-duration: 20s;
}

.particle:nth-child(2) {
    left: 70%;
    top: 90%;
    animation-duration: 15s;
    width: 8px;
    height: 8px;
}

.particle:nth-child(3) {
    left: 40%;
    top: 70%;
    animation-duration: 25s;
}

.particle:nth-child(4) {
    left: 85%;
    top: 60%;
    animation-duration: 18s;
    width: 4px;
    height: 4px;
}

@keyframes floatParticle {
    0% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 0;
    }
    20%,
    80% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) translateX(50px) scale(1.5);
        opacity: 0;
    }
}

.story {
    padding: 20vh 0;
    background-color: var(--bg-color);
    transition: background-color 0.5s ease;
}

.story-text {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.8;
    font-weight: 700;
    max-width: 1000px;
    margin: 0 auto;
    text-align: right;
    background: linear-gradient(-90deg, var(--text-color) 50%, rgba(120, 120, 120, 0.25) 50%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.dark-mode .story-text {
    background: linear-gradient(-90deg, var(--text-color) 50%, rgba(255, 255, 255, 0.1) 50%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.story-text .highlight {
    color: var(--accent-gold);
    -webkit-text-fill-color: var(--accent-gold);
}


/* Products Grid (Home) */

.products-section {
    padding: 10vh 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.section-header p {
    font-size: 1rem;
    opacity: 0.8;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem 2.5rem;
}

.product-card {
    display: flex;
    flex-direction: column;
    padding: 1.2rem;
    border-radius: 20px;
    transition: background-color 0.4s ease;
}

.product-card:hover {
    background-color: var(--card-hover);
}

.product-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    aspect-ratio: 1/1;
    margin-bottom: 1.5rem;
    background-color: #e9e7e1;
}

body.dark-mode .product-img-wrapper {
    background-color: #0b1510;
}

.product-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    transition: opacity 0.3s ease;
}

.product-info h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.product-info p {
    opacity: 0.7;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}


/* Single Product Pages */

.single-product-section {
    padding: 18vh 5% 10vh;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.single-product-layout {
    display: flex;
    gap: 4rem;
    align-items: center;
    flex-wrap: wrap;
}

.single-product-image {
    flex: 1;
    min-width: 300px;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 1/1;
    background-color: #e9e7e1;
}

body.dark-mode .single-product-image {
    background-color: #0b1510;
}

.single-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.single-product-details {
    flex: 1;
    min-width: 300px;
}

.single-product-details h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.single-product-details .description {
    font-size: 1.05rem;
    opacity: 0.8;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.variant-label {
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.variant-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 1.5rem;
    background-color: rgba(10, 27, 16, 0.05);
    padding: 5px;
    border-radius: 30px;
    width: max-content;
}

body.dark-mode .variant-selector {
    background-color: rgba(255, 255, 255, 0.05);
}

.variant-btn {
    background: transparent;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.variant-btn.active {
    background-color: var(--bg-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    opacity: 1;
    font-weight: 600;
    color: var(--accent-gold);
}

body.dark-mode .variant-btn.active {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.single-product-details .price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-gold);
    display: block;
    margin: 1.5rem 0;
}

.cart-actions-inline {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.add-to-cart-btn {
    background-color: var(--text-color);
    color: var(--bg-color);
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 1rem;
    font-family: inherit;
}

.add-to-cart-btn.added {
    background-color: var(--accent-gold);
    color: #fff;
}

.remove-cart-btn {
    background-color: var(--error-red);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: none;
    justify-content: center;
    align-items: center;
    transform: scale(0);
    opacity: 0;
}

.remove-cart-btn.show {
    display: flex;
}


/* Experience & Footer */

.experience {
    padding: 15vh 5%;
    background-color: #050E0A !important;
    color: #F9F8F4 !important;
}

.experience-layout {
    display: flex;
    align-items: flex-start;
    max-width: 1440px;
    margin: 0 auto;
    gap: 5rem;
}

.experience-text {
    flex: 1;
    padding: 10vh 0;
}

.step {
    margin-bottom: 20vh;
    opacity: 0;
}

.step span {
    font-size: 3.5rem;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.step h3 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.step p {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.8;
}

.experience-image {
    flex: 1;
    position: relative;
}

.img-container {
    position: sticky;
    top: 20vh;
    height: 60vh;
    border-radius: 20px;
    overflow: hidden;
}

.img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer {
    padding: 8vh 5% 4vh;
    text-align: center;
    background-color: #030806 !important;
    color: #F9F8F4 !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-logo {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
}

.footer p {
    font-size: 0.95rem;
    opacity: 0.8;
}


/* --- Auth Modal --- */

.auth-toggle-btn {
    background: transparent;
    border: 1px solid var(--accent-gold);
    color: var(--text-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-family: inherit;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.navbar.scrolled .auth-toggle-btn {
    color: var(--text-color);
    border-color: var(--text-color);
}

.navbar:not(.scrolled) .auth-toggle-btn {
    color: #fff;
    border-color: #fff;
}

.auth-toggle-btn:hover {
    background: var(--accent-gold);
    color: #fff;
    border-color: var(--accent-gold);
}

.auth-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.auth-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.auth-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 380px;
    background-color: var(--bg-color);
    z-index: 1001;
    border-radius: 20px;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.76, 0, 0.24, 1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.auth-modal.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
}

.auth-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.auth-header h3 {
    font-size: 1.5rem;
}

.close-auth {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-color);
    cursor: pointer;
    transition: transform 0.3s;
}

.close-auth:hover {
    transform: rotate(90deg);
    color: var(--error-red);
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.checkout-form input {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(10, 27, 16, 0.2);
    border-radius: 12px;
    background: transparent;
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 0.95rem;
}

body.dark-mode .checkout-form input {
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-checkout {
    background-color: var(--accent-gold);
    color: #fff;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-weight: bold;
    font-size: 1.05rem;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background 0.3s;
    font-family: inherit;
}

.auth-switch {
    margin-top: 1.2rem;
    text-align: center;
    font-size: 0.9rem;
}


/* Toast */

#toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 1rem 2rem;
    border-radius: 10px;
    font-weight: 500;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.5s ease;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-icon {
    font-size: 1.3rem;
}


/* --- Dedicated Cart Page --- */

.cart-page-section {
    padding: 18vh 5% 10vh;
    min-height: 80vh;
}

.cart-page-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    background: rgba(10, 27, 16, 0.03);
    border-radius: 16px;
    margin-bottom: 1rem;
    transition: background 0.3s;
}

body.dark-mode .cart-page-item {
    background: rgba(255, 255, 255, 0.03);
}

.cart-page-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-body);
}

.cart-page-item .qty-price {
    font-size: 1rem;
    color: var(--accent-gold);
    font-weight: bold;
}

.cart-page-remove {
    background: var(--error-red);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s;
}

.cart-page-remove:hover {
    transform: scale(1.1);
}

.cart-summary {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(197, 160, 89, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.cart-summary h2 {
    font-size: 1.8rem;
    color: var(--accent-gold);
    font-family: var(--font-heading);
}

.empty-cart-msg {
    text-align: center;
    font-size: 1.2rem;
    opacity: 0.6;
    margin-top: 4rem;
    font-weight: bold;
}


/* --- Preloader --- */

.preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-color);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s ease, visibility 0.6s;
}

.preloader-logo {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: rgba(197, 160, 89, 0.2);
    position: relative;
}

.preloader-logo::after {
    content: 'سه غاز';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-gold);
    overflow: hidden;
    clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%);
    animation: fillLiquid 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

@keyframes fillLiquid {
    0% {
        clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%);
    }
    100% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

body.loaded .preloader {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}


/* === MOBILE RESPONSIVE FIXES === */

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1.2rem;
        padding: 1.5rem 5%;
        background-color: var(--nav-bg) !important;
        color: var(--text-color) !important;
        backdrop-filter: blur(15px);
    }
    .navbar .auth-toggle-btn {
        color: var(--text-color) !important;
        border-color: var(--text-color) !important;
    }
    .nav-brand {
        width: 100%;
        display: flex;
        justify-content: center;
    }
    .nav-controls {
        width: 100%;
        justify-content: center;
        gap: 1.5rem;
    }
    .nav-links {
        width: 100%;
        display: flex;
        justify-content: center;
        gap: 1.5rem;
        border-top: 1px solid rgba(197, 160, 89, 0.2);
        padding-top: 1.2rem;
    }
    .nav-links a {
        margin-left: 0;
        font-size: 0.95rem;
    }
    .auth-toggle-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    .nav-cart {
        font-size: 0.85rem;
    }
    .site-logo {
        height: 40px;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .single-product-layout {
        gap: 2.5rem;
    }
    .admin-grid {
        grid-template-columns: 1fr;
    }
    .cart-summary {
        flex-direction: column;
        align-items: flex-start;
    }
    .btn-primary {
        padding: 0.8rem 2rem;
        width: 100%;
        text-align: center;
    }
}
/* ==========================================
   Hardware Acceleration (افزایش چشمگیر سرعت رندر)
========================================== */
.product-card, .hero-bg, .step, .variant-btn, .toast, .auth-modal {
    will-change: transform, opacity;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* روان‌تر شدن هاور دکمه حذف سبد */
.cart-page-remove:hover {
    background: #ff4d4d !important;
    color: white !important;
}